Product Characteristics: 1. With mirror surface in stainless steel, four square semicircle transition, shelf support handing freely, easy for cleaning within the case. 2. It adopts temperature control protection, digital display, microcomputer PID temperature controller with timer function to ensure precise and reliable temperature control. 3. Hot air circulation system is composed of blower fan and proper air channels, which is capable of continuous operation under high temperature. Improve the uniformity of the temperature inside the working chamber. 4. New-style Silicon gasket ensure long-life under high Temperature, and easy to replace. 5. Can adjust flow of blast & exhaust in control panel. 6. Independent alarm system for temperature-limiting ensures experiments run safely and no accident would happen. (Option) 7. Recorder and printer are options which can print or record setting parameters and trace variational curves of temperature(4~20mA standard signal). (Option) DHG-9023A, RT+10~200C, charmer dimension 340*325*320.